<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Page1</title>
</head>
<body>
   <!--  <a href="2.html">页面1</a> -->
     <nav>
        <ul>
           <li><a href="./1.html">页面1</a></li>
           <li><a href="./2.html">页面2</a></li>
        </ul>
     </nav>
     <h1>Page1</h1>
     <p>这是第一个页面的内容</p>
</body>
</html>